Part Number: 13120-20 (Single filter assy) Part Number: 1312020000 (Weidmuller) Part Number: 13-12022 (Pilots radio communications guid) Part Number: 1312022-01 (Ne) Part Number: 1312022-07 (Ne) Part Number: 1312023-01 (Ne) Part Number: 13-12024 (Aviation acronyms contractions ) Part Number: 13-12028 (Visi plotter) Part Number: 131-2028-00 (Contact electrical) Part Number: 131-2028-4 (Conductor) Part Number: 13120-29 (Filter element-tube) Part Number: 131-2029-00 (Connector) Part Number: 131203 (No description) Part Number: 13-1203-01 (No description)